Structure guide · terminology check

Makeshift Building, Container Shelter and Outpost

A search-focused map of the three container-building names, with the unlock chain kept explicitly provisional.

What you can use now

Public sources connect container-building searches with Oil Rigs, but they do not give us a clean current UI record. A TechWiser location guide reports a Small Rig → Container Shelter, Big Rig → Makeshift Building Container, and Huge Rig → Outpost Container chain. Treat that as a reported unlock lead, not as a confirmed map or cost table.

Reported unlock chain

Reported source locationReported building labelPublication state
Small Oil RigContainer ShelterNeeds UI proof
Source lead only.
Big Oil RigMakeshift Building ContainerNeeds UI proof
Source lead only.
Huge Oil RigOutpost ContainerNeeds UI proof
Source lead only.

Why the names need care

The search wording uses “Makeshift Building,” “Container Shelter,” “Makeshift Building Container,” “Outpost,” and “Outpost Container.” These may be UI names, guide shorthand, or different objects. This page does not silently merge them; the exact label must come from the current build menu or unlock container.

What the structure sources do support

The Fandom crafting reference says some container items require finding a corresponding Oil Rig, and that some facilities have limits that may require dismantling before rebuilding. That is a useful rule for planning, but it does not establish the cost, capacity, raid resistance, or exact location of any named container building.

FieldWhat to record before publishing
UI nameExact item label and icon from the build menu.
UnlockRig size, container interaction, and any enemy/key prerequisite.
CostMaterial names and quantities shown in the current UI.
FunctionStorage, shelter, defense, production, or another tested role.
LimitBuild cap, dismantle behavior, and whether rebuilding is possible.

A safe building test

01

Capture the unlock container

Record the Oil Rig size and the exact text shown when the purple container is opened.

02

Copy the build-menu entry

Save the label, icon, displayed cost, and any limit before placing the structure.

03

Test the function

Check what the structure actually does, whether it survives a Raid, and what dismantling returns.

Not published as facts

No exact Oil Rig coordinates, required keys, material costs, capacity, Raid resistance, or “best base” recommendation is asserted. Those are the key fields the Stage 3 ledger marked for in-game evidence.

Sources and confidence

Fandom · Crafting & Structures ↗B2 · general container-item rule · updated 13 Aug 2026TechWiser · Islands and Oil Rigs ↗B1 · reported three-rig unlock chain · updated 15 Aug 2026Tidelog · Crafting progression →Internal link · separates general progression from container unlocks

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